On Mar 20, 9:57 am, Garrett Honeycutt <garr...@puppetlabs.com> wrote:
> I would strongly encourage you to never use inheritance with nodes and
> only to use inheritance within a given module[1].
>
> Instead of
>
> node default {
> include baseline}
>
> node app inherits default {
> include appstuff
>
> }
>
> I would recommend
>
> node default {}
> node app {
> include baseline # though, I recommend this is named 'common'
> include appstuff
>
> }
>
> [1] -http://docs.puppetlabs.com/guides/style_guide.html#class-inheritance
Would you care to explain the reasons for that recommendation? I
acknowledge that it's easy to overdo node inheritance, but it works
fine and has some good use cases. I do typically recommend keeping
node inheritance trees very shallow (two levels, or at most three),
but I've never noticed any general sentiment disfavoring its use
altogether.
Class inheritance is a completely different beast. Its appropriate
uses are few (though they do exist), and people seem much more
inclined to get themselves in trouble there than with node
inheritance.
John
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